How to change the rotary bearing of three-layer film blowing machine?

1. Remove the old bearing and check whether the old bearing is damaged or excessively worn with tools such as wrench or jack. If the old bearing is damaged or deformed, it needs to be replaced with a new bearing.

2. Before replacing a new bearing, the bearing seat and bearing cover plate must be thoroughly cleaned, and ensure that there are no sundries or dirt. Install the new bearing to the original position and fix it on the bearing seat with the locating pin.

3. Replace the bearing seat and cover plate and tighten them correctly with tools such as wrench or torque wrench.